The Great Depression was the worsteconomic crisis in U.S. history. From 1931 to 1940 unemployment was always in double digits. ... Those war jobs seemingly took care of the 17 million unemployed in 1939. Most historians have therefore cited the massive spending during wartime as the event that ended the Great Depression
<span>In the 1980's and the 1990's the manufacturing industry was the reason for the American economy was declining. The business owners of large cooperations were sending their work and opening companies in other countries. This was due to cheap labor that other countries were willing to pay the workers. They did not pay their workers a fair wage and companies saved millions to send the work out than to pay the American people a fair wage to do the same job. The other countries would have "sweat shops" and make the workers work for 16 hour day or even more. The workers in other countries did not have labor laws and would get paid dollars a day. The correct answer is D.</span>
Short Answer: The scientist named would be <span>Ivan Pavlov.
I would be really happy if I get brainliest.</span>
I do not know all of the groups but I do know for sure one of the main large groups the Nazis had singled out for extermination was the Jews during the Holocaust.